Ecology: Ecosystem Dynamics and Conservation

Ecology: Ecosystem Dynamics and Conservation

American Museum of Natural History, Howard Hughes Medical Institute

Informações sobre o curso: This course is an introduction to ecology and ecosystem dynamics using a systems thinking lens. Through a case study on Mozambique's Gorongosa National Park, learners will explore how scientists study ecosystems, and investigate the complex array of factors that inform management efforts. At the end of the course, learners will be able to grapple with real-world conservation questions, such as whether an ecosystem can recover from anthropogenic disruption and what role humans can, and should, play in that recovery.

We begin in Gorongosa National Park, Mozambique, and pose the question: Can this ecosystem recover after a 15-year civil war? To answer this question, learners must first consider what they need to know—what are the parts that make up this ecosystem, and how do they interact and work together? How do ecosystems react to disruption? How do we know? We will begin to explore the ecosystem as a dynamic whole rather than as a collection of parts, considering how changes might affect the system in a variety of ways. This application of a systems thinking lens to understanding ecosystems will be a common theme throughout the course.

Reading: Mozambique's Gorongosa National Park: Can an Ecosystem Recover?

Reading: Introduction to Ecology

Reading: Introduction to Biodiversity

Reading: Introduction to Systems--and Systems Thinking

Vídeo: Africa's Savanna Ecosystems

Nota atribuída: Module One: What have you learned?

SEMANA 2

How Do We Study Populations?

This week, we narrow the focus to populations within ecosystems. Who or what populates an ecosystem, and what are their roles? How do these roles change over time? What happens when a species is removed from a system? How do scientists study the populations within an ecosystem, from its largest to its smallest inhabitants? You will explore the important roles different species can play—such as ecosystem engineers, keystone species, and indicator species—and how they shape their ecosystems.

Reading: How do we Study a Population--and Why? Part I: Population Dynamics

Vídeo: Modeling Population and Species Interactions Holiday Lecture

Reading: How do we Study a Population--and Why? Part II: Modeling Population Growth

Vídeo: Surveying Ant Diversity in Gorongosa National Park

Nota atribuída: Module Two: What have you learned?

SEMANA 3

How Do Species Coexist?

This week we focus on community ecology and further explore the interactions between species in an ecosystem. For instance, how does the decline in a population from an ecosystem (as was the case in Gorongosa) affect the other players? How does adding a population -- such as an invasive species or translocated herds -- affect an ecosystem?

Vídeo: Some Animals Are More Equal Than Others: Keystone Species and Trophic Cascades

Vídeo: Communities as Ecological Networks

Nota atribuída: Module Three: What have you learned?

SEMANA 4

How is an Ecosystem a System?

This week, we will further their understanding about what makes an ecosystem a system by examining the flow of energy and matter through different parts of the environment. This includes understanding the interactions of biotic and abiotic factors within an ecosystem and the services each component provides. We will introduce the complicated effects of both abiotic (climate change) and biotic (herbivory) interactions within a coastal salt marsh system, touching on ecological concepts of thresholds in a system and ecosystem resistance and resilience.

This week we conclude by focusing on the role of humans in ecosystems: how humans interact with and are shaped by their environments. We explore the meaning of the “anthropocene” (the title given to the current geological age in recognition of significant impact of human activities) and investigate management approaches that balance human needs and biodiversity. We also return to Gorongosa National Park to wrap up the course, shifting the conversation from "Can an ecosystem recover?" to "Should it recover?" and "What does a successful recovery look like?" We explore how conservation might have to adjust to future challenges such as climate change, extinctions, and human population growth. We also introduce the idea that a spectrum of conservation approaches is necessary, from the preservation of land and species, to the integration of biodiversity into market economies, to the creation and management of “novel” ecosystems.

Each course is like an interactive textbook, featuring pre-recorded videos, quizzes and projects.

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Desenvolvedores

American Museum of Natural History

The American Museum of Natural History is one of the world’s preeminent scientific, educational and cultural institutions. Since its founding in 1869, the Museum has advanced its global mission to discover, interpret, and disseminate information about human cultures, the natural world, and the universe through a wide-ranging program of scientific research, education, and exhibition.

Howard Hughes Medical Institute

The Howard Hughes Medical Institute is a nonprofit organization whose mission is to advance biomedical research and science education. The HHMI BioInteractive website provides free multimedia resources to science educators and students. They include multimedia interactive resources, such as apps, animations, videos, click and learns, and virtual labs.

Classificações e avaliações

Avaliado em 5 de 5 decorrente de 13 avaliações

JP

Great introductory overview to the science of Ecology. I learned a lot.

LD

Very interesting, well illustrated with current cases and examples. Great course.

RJ

I realy liked the course and would like to learn more ecology and conservation.